# Building conduction heat loss
# Scope: Steady envelope transmission using supplied overall U-value.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

area = 100 m^2
uValue = 0.4 W/(m^2*K)
difference = 20 K

heat := area*uValue*difference [W]

check heat loss budget: heat <= 1000 W

scenario alternative: area = 80 m^2